Haiku Alpha 3 has been in development for more than 14 months. In that time more than 800 bugs have been identified and fixed, major sections have been updated, applications have been added and updated, and great progress has been made in supporting additional hardware. Here is a summary of updates, more details can be found here. Also inside, interviews with some core Haiku developers.

I always have a hard time defining hybrids myself Most known hybrids sound to me like extremely modular monolithic designs : a huge lot of functionality is still in kernel mode, sharing a common address space, but in separate and easily replaceable code modules.

IANAKH(I am not a kernel hacker), but that is the way I read hybrid kernels, too. If you make that argument, then wouldn't the LKM in linux kinda be (almost) a hybrid design? It is runtime loadable drivers and subsystems. Not quite a micro kernel, but not quite a monolithic either. just right.

*edit: stupid me, forgot that a microkernel design requires the pieces to be outside of kernel space. I should really pay attention when reading "OPerating Systems, Design and implementations."